The Peterbilt 579 And 567 NGP High Roof Aluminum Standard Conversion Kit is a practical and efficient solution for upgrading your Peterbilt 579 or 567 NGP High Roof models. This kit includes a pre-assembled one-piece aluminum 0.063 panel with pre-installed bracing, a window, and sound deadening insulation. The CNC cut and drilled panel ensures a precise fit inside the flange, while the acid sealed and primer-ready finish guarantees durability. With hardware and sealer included, this kit is easy to install and fits most Peterbilt 579 and 567 NGP High Roof models (excluding UltraLoft models).